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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| K-Jon Inc. | Lake Charles, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 910 |
| K&M Construction of Louisiana LLC | Winnfield, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 340 |
| K&P Sewer Systems | Plaucheville, LA | — | Installer (Basic)Installer (Combination) | 30322 |
| Kashual Maintenance | Zachary, LA | — | Installer (Basic)Installer (Combination) | 31536 |
| Kashual Maintenance | Zachary, LA | — | Installer (Basic)Installer (Combination) | 31538 |
| Keaton Sewer Solutions | Crowley, LA | — | Installer (Basic)Installer (Combination) | 32180 |
| Keel's Septic Tank & Dirt Work | DeRidder, LA | — | Installer (Basic)Installer (Combination) | 30242 |
| Keith's Plumbing Service of Belle Chasse, Inc. | Belle Chasse, LA | — | Installer (Basic)Installer (Combination) | 30952 |
| Kelly Maggio | Winnfield, LA | — | Installer (Basic)Installer (Combination) | 40107 |
| Kelly Trio Services | Baton Rouge, LA | — | Installer (Basic) | 40122 |
| Ken's Plumbing & A/C Inc. | Houma, LA | — | Installer (Basic)Installer (Combination) | 32152 |
| Ken's Plumbing & A/C Inc. | Houma, LA | — | Installer (Basic)Installer (Combination) | 32154 |
| Kenneth Hofler Plumbing LLC | Eros, LA | — | Installer (Basic)Installer (Combination) | 40051 |
| King's Backhoe Services and Installation | Port Allen, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 40078 |
| King's Septic Tank | Kentwood, LA | — | Installer (Basic)Installer (Combination) | 635 |
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